9. shot (n.) a consecutive series of pictures that constitutes a unit of action in a film
The vacuum level is determined by the pressure differential between the evacuated volume and the surrounding atmosphere. Several units of measure can be used. Most refer to the height of a column of mercury â usually inches of mercury (in.-Hg) or millimeters of mercury (mm-Hg).
While the vacuum infusion takes place preferable in the medium vacuum range ( is a vacuum (absolute pressure) less than 1 Hg (35 mbar) the accuracy of the vacuum gauge is in the range of 1.5 Hg (50 mbar) So, here comes the wish for an absolute pressure gauge.